1、 毕业设计说明书毕业设计说明书( (论文论文) ) 微电网的孤岛检测研究 三相逆变器接口建模 学 生 姓 名 : 班 级 学 号 : 院、系、部: 专 业: 指 导 教 师: 2010 年 06 月 I Undergraduate Design(Thesis) Study on island detection in Micro Grids Three-phase inverter interface modeling BY NI JIN-JIE Supervised by Lecturer LI Jun School of Electric Power Engineering Nanjing
2、 Institute of Technology June 2010 - II - 摘要 由于科技进步和环境保护的要求,一些分布能源(DER)如内燃机 ( IC ) 、微型燃气轮机、光伏发电、燃料电池和风力发电,已经在配电网 中应用。独立分布式发电的应用可以解决很多问题,但其本身也存在不少缺 陷。为更好地实现分布式发电的潜力可以采用系统的方法,也就是使电源和 相关的负载构成一个子系统或“微电网”(MG) 。 本文的主要目的是,总结和研究三相逆变器建模。前面介绍了微电网的 研究现状,其中重点介绍微电网在欧洲和日本的发展。而后比较分析了逆变 器在反孤岛技术中的应用和逆变器的控制方式比较。最后使用
3、MATLAB 中 的 Simulink 工具建立了三相逆变器模型。并且在最后进行了仿真,给出了结 果。 关键词:关键词:微电网,反孤岛,三相逆变器 Abstract Due to the technology development and environment protection, some distributed energy resources (DER), such as internal combustion (IC) engines, gas turbines, micro turbines, photovoltaic, fuel cells and wind-power, h
4、ave emerged within the distribution system. However, application of individual distributed generators can cause as many problems as it may solve. A better way to realize the emerging potential of distributed generation and associated loads is a subsystem called “Micro Grid” (MG). The main purpose of this paper is summarized and the research, three-phase inverter modeling. In front of the network are introduced, including